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Solar energy originates in nuclear reaction, where mass energy changes the most in kinetic energy of photon. In earth, solar radiation energy is about 1,35kW/m2. calculate how much mass, the Sun loses in second. Earth's distance from the sun is 1,5x108km.
a 4.0x10^6 ohm resistor is connected in series with a 0.50 microfarad capacitor. What is the change in voltage between t=RC and t=3RC
Two cars a and b are travelling in the equal direction with velocities A and B(A>B). While the car a is at a distance behind car b, the drive of car a applies break producing uniform retardation r, there will b no collision while.
proton is confined to a nucleus that has a diameter of 5.6 10-15 m. what is the minimum uncertainty in its momentum
0.45 kg of a metal at 90.°C is added to 0.40 kg of water at 20.0°C. If the final temperature of the mixture is 26.°C, what is the specific heat of the metal
A ball, initially at y = 0, is thrown straight down and takes 1.40 s to move 13.8 m in the - y direction. Calculate the initial velocity of the ball
What is the current in the element of an electric clothes dryer with a resistance of 8.2? when it is connected to 240 V
Light of wavelength 563 nm incident on a pair of slits produces an interference pattern on a distant screen in which the separation between adjacent bright fringes at the center of the pattern is 0.589 cm
How far is he from the orgin. A simple pendulum has a mass of 0.350 kg and a length of 2.00 m. It is displaced through an angle of 7.0° and then free.
A particular guitar string is supposed to vibrate at 203 Hz, other than it is measured to actually vibrate at 208 Hz. By what percentage must the tension in the string be changed to get the frequency to the correct value.
A candle is placed 13.38 cm in front of a convex mirror. When the convex mirror is replaced with a plane mirror, Find the focal length of the convex mirror
The average intensity of solar radiation incident on the upper atmosphere of the earth is 1390 W/m2. Assuming the sun emits radiation uniformly in all directions, evaluate the total power radiated by the sun.
After the first spring compresses a distance of 33cm, second spring acts with the first to increase the force as additional compression occurs. The car comes to rest 53.0 cm after first contacting the two-spring system. Find the car's initial spee..
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